Start with a retraction statement. You can retract your two-week notice or resignation letter, but, in most cases, it's up to the employer whether they accept your retraction.To write a withdrawal letter of resignation, address it to your direct supervisor or HR department. I would like to request you to consider my resignation withdrawal letter and let me know before I complete my notice period, i.e. The form may be mailed to P.O. Box 13697, Austin, Texas. 78711-3697; faxed to (512) 463-5709; or delivered to the James Earl Rudder Office Building, 1019. But I already submitted my resignation. Is there any way I can un-resign and keep my office? Separation from Employment.